Attosecond control of spin polarization in electron-ion recollision driven by intense tailored fields

Abstract

We show that electrons recolliding with the ionic core upon tunnel ionization of noble gas atoms driven by a strong circularly polarized laser field in combination with a counter-rotating second harmonic are spin polarized and that their degree of polarization depends strongly on the recollision time. Spin polarization arises as a consequence of (1) entanglement between the recolliding electron and the ion, and (2) sensitivity of ionization to the sense of electron rotation in the initial state. We demonstrate that one can engineer the degree of spin polarization as a function of time by tuning the relative intensities of the counter-rotating fields, opening the door for attosecond control of spin-resolved dynamics.

References in corpus (7)

• Imaging an aligned polyatomic molecule with laser-induced electron diffraction
• A practical scheme for generating isolated elliptically polarized attosecond pulses using bi-chromatic counter rotating circularly polarized laser fields
• Electron spin polarization in strong-field ionization of Xenon atoms
• Spin conservation in high-order-harmonic generation using bicircular fields
• Circularly Polarized Molecular High Harmonic Generation Using a Bicircular Laser
• Opportunities for chiral discrimination using high harmonic generation in tailored laser fields
• Opportunities for detecting ring currents using the attoclock set-up

Cited by in corpus (13)

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• Polarized electron-beam acceleration driven by vortex laser pulses
• Signatures of electronic structure in bi-circular high-harmonic spectroscopy
• Strong-field approximation in a rotating frame: High-order harmonic emission from p states in bicircular fields
• Control of helicity of high-harmonic radiation using bichromatic circularly polarized laser fields
• Strong-field control and enhancement of chiral response in bi-elliptical high-order harmonic generation: an analytical model
• Controlling polarization of attosecond pulses with plasmonic-enhanced bichromatic counter-rotating circularly polarised fields
• Evidence of ac-Stark-shifted resonances in intense two-color circularly polarized laser fields
• Polarization control of attosecond pulses using bi-chromatic elliptically polarized laser
• Enhancing spin polarization using ultrafast angular streaking